stihl038x2
ArboristSite Operative
Good show Dennis ! What is that jug off of ?
Steve
Steve
Andy's Christmas 460 build
- Thread starter ECsaws
- Start date
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Dennis Cahoon
Addicted to ArboristSite
The pin is just added holding power......don't want any accidental movement. You have to be careful with the amount of pressure on the ears of the cylinder. I found it easier with the pin being there, to Zero the cylinder with the dial indicator, while tightening the bolts. I never will claim to be a machinist, and have on occasion gotten greedy with taking alittle more material than I should have......Hahahahahaha!....who has done that EH!.....so I figure the more holding power the better.
Dennis Cahoon
Addicted to ArboristSite
I think that was an 046 cylinder I did up for my boy.
parrisw
Tree Freak
Nice work Dennis. What does your cutting tool look like? Must be pretty long.
gink595
Addicted to ArboristSite
Will, I'm not sure you can ask another man that question.... Seems inappropriate :hmm3grin2orange:
parrisw
Tree Freak
LOL, that was quick!! Was wondering who would be the first.
FYI Dennis I'm not talking about your Johnson.
Metals406
Granfodder Runningsaw
Sure. . . Ya say that now.
I envision a boring bar of sorts for that type work. I know a lot of machinists make their own tooling, including boring bars.
The local shop here said they'd do 11" deep, before it gets sketchy.
FATGUY
Addicted to ArboristSite
little possum
Crash and Burn
Thanks Dennis. Thats what my simple mind drew up in my mental Auto-cad. But seemed like the force and pressure would have been too great for the studs, and somethings gotta give 
Gotta get my tractor shed built, and get the mill home!! You guys are inspiring!
Merry Christmas Andy, you are gonna love the 460!
Gotta get my tractor shed built, and get the mill home!!
You guys are inspiring!Merry Christmas Andy, you are gonna love the 460!
parrisw
Tree Freak
Sure. . . Ya say that now.
I envision a boring bar of sorts for that type work. I know a lot of machinists make their own tooling, including boring bars.
The local shop here said they'd do 11" deep, before it gets sketchy.
The boring bars that I have won't cut the end of the bore though.
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parrisw
Tree Freak
No
FATGUY
Addicted to ArboristSite
If your boring bar is sticking out too far and you start to chatter, wrapping an elastic band around the base may absorb some of the chatter.
Metals406
Granfodder Runningsaw
Make ya one then mang. . . Should be fairly straight forward. If you're an insert type guy, ya make a boring bar with an end that the insert will faced forward. Cut here, grind there, drill and tap, done.
I'm sure Nik could hook ya up with ideas, or a tool he already has for cutting a dead-end.
chainsaw kid
ArboristSite Operative
Wow, I must have a dirty mind. I was thinking elastic band around balls till they fall off...lol...
Kevin
FATGUY
Addicted to ArboristSite
that kinda confuses me, I'd like to see a pic. All bbars have to be end cutting or you couldn't bore at all. Most have a 5 degree lead angle but they can be bought with no lead angle. Those are usually used in boring heads and not on a lathe. Now if he meant his boring head can not face, most can't.
FATGUY
Addicted to ArboristSite
Don't feel bad Kevin, you actually got the joke meaning.
little possum
Crash and Burn
I still dont know whether you guys are talking about tools or units.
FATGUY
Addicted to ArboristSite
how much of the cylinder underneath the squish band can be uncoated? The crown thickness as measured from the ring?
Metals406
Granfodder Runningsaw
I'm not a machinist (I did stay at a Holiday Inn Express last night), but I have a half assed idea of the boring bars (kind'a). Most are for cutting the side of the bore, no?
I was saying, if the HSS bit (or insert) couldn't be positioned to cut the dead-end of the bore, a guy could make one where all the angles were right to do it.
I really regret not taking metal shop in High School, I took wood shop instead. I'm playing catch-up now with milling and turning. I sub to a few Tube channels of some dang good machinists, and I'm picking up a lot.
Does what I'm saying make sense or am I full of ####?
FATGUY
Addicted to ArboristSite
I'm not a machinist (I did stay at a Holiday Inn Express last night), but I have a half assed idea of the boring bars (kind'a). Most are for cutting the side of the bore, no?
I was saying, if the HSS bit (or insert) couldn't be positioned to cut the dead-end of the bore, a guy could make one where all the angles were right to do it.
I really regret not taking metal shop in High School, I took wood shop instead. I'm playing catch-up now with milling and turning. I sub to a few Tube channels of some dang good machinists, and I'm picking up a lot.
Does what I'm saying make sense or am I full of ####?
I'm just trying to be helpful here, I hope I'm not hijacking the thread. While bbars do cut the diameter they need to be able to be fed through the bore. I'm assuming Will is using a bbar that was designed with a lead angle that would not produce a face perpendicular to the bore.
